chore(deps): Bump aws-sdk from 2.1277.0 to 2.1278.0 in /functions (#229)

Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.1277.0 to 2.1278.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/aws/aws-sdk-js/releases">aws-sdk's releases</a>.</em></p>
<blockquote>
<h2>Release v2.1278.0</h2>
<p>See <a href="https://github.com/aws/aws-sdk-js/blob/master/CHANGELOG.md">changelog</a> for more information.</p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/aws/aws-sdk-js/blob/master/CHANGELOG.md">aws-sdk's changelog</a>.</em></p>
<blockquote>
<h2>2.1278.0</h2>
<ul>
<li>feature: Athena: Add missed InvalidRequestException in GetCalculationExecutionCode,StopCalculationExecution APIs. Correct required parameters (Payload and Type) in UpdateNotebook API. Change Notebook size from 15 Mb to 10 Mb.</li>
<li>feature: ECS: This release adds support for alarm-based rollbacks in ECS, a new feature that allows customers to add automated safeguards for Amazon ECS service rolling updates.</li>
<li>feature: KinesisVideo: Amazon Kinesis Video Streams offers capabilities to stream video and audio in real-time via WebRTC to the cloud for storage, playback, and analytical processing. Customers can use our enhanced WebRTC SDK and cloud APIs to enable real-time streaming, as well as media ingestion to the cloud.</li>
<li>feature: KinesisVideoWebRTCStorage: Amazon Kinesis Video Streams offers capabilities to stream video and audio in real-time via WebRTC to the cloud for storage, playback, and analytical processing. Customers can use our enhanced WebRTC SDK and cloud APIs to enable real-time streaming, as well as media ingestion to the cloud.</li>
<li>feature: RDS: Add support for --enable-customer-owned-ip to RDS create-db-instance-read-replica API for RDS on Outposts.</li>
<li>feature: SageMaker: AWS Sagemaker - Sagemaker Images now supports Aliases as secondary identifiers for ImageVersions. SageMaker Images now supports additional metadata for ImageVersions for better images management.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/aws/aws-sdk-js/commit/efec413dad620eacb3cf7c061114250a60284c3f"><code>efec413</code></a> Updates SDK to v2.1278.0</li>
<li>See full diff in <a href="https://github.com/aws/aws-sdk-js/compare/v2.1277.0...v2.1278.0">compare view</a></li>
</ul>
</details>
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</details>